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bg-wa

General Debugging and "Loot" Folder Permissions

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So after a week of clean testing I managed to break my bash bunny, somehow messing up the mount point /root/udisk/ (It would not auto-mount and was read-only when manually mounted)...

Thanks to @Foxtrot I was able to regain access by re-mounting and changing the permissions:

mount -o sync /dev/nandf /root/udisk
chown root:root /root/udisk -R
chmod 777 /root/udisk -R

I still can't write to my individual payload switch folders like I previously could, so I've updated my debug helper to reflect a more accessible directory (/root/udisk/debug):

https://github.com/bg-wa/bashbunny-payloads/blob/bunny_debug_helpers/payloads/library/bunny_debug_helpers.sh

Again, to use this script:

1.) Include the helper at the top of your script:

source bunny_debug_helpers.sh

2.) Pepper your script with log entries to see where events succeed.

debug_log "Attack Mode Set" #ln. 41
debug_log "IP Address : ${TARGET_IP}" #ln 92

3.) Plug in Bunny... bash bash bash...

4)  When finished, set the Bunny to arming mode and view your debug logs in the newly created "Debug" folder (/root/udisk/debug).

Edited by bg-wa

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1 hour ago, Dave-ee Jones said:

I'm confused. Is it fixed or no?

Yes.  When I took the time to write a test, it makes more sense...

Basically I had locked myself out of the BashBunny partition where the loot and payload folders live.  I couldn't sudo chmod them from the machines I tried, so I had to reset them on the Bunny itself...  Somewhere along the lines of the hundreds of times I plugged and unplugged this device, into everything in my house that has a USB port, permissions got changed. 

Here is a script I wrote after the fact in case it happens again:

# At this point I could not write to /root/udisk/loot
# or /root/udisk/debug as I could before

LED G

mkdir /root/udisk/debug

touch /test # File 'test' written
touch /root/test # File 'test' written
touch /root/udisk/test # File NOT written
touch /root/udisk/loot/test # File NOT written
touch /root/udisk/debug/test # File NOT written
touch /root/udisk/payloads/test # File NOT written
touch /root/udisk/payloads/switch1/test # File NOT written

# Then I ran:
# mount -o sync /dev/nandf /root/udisk
# chown root:root /root/udisk -R
# chmod 777 /root/udisk -R



touch /test # File 'test' written
touch /root/test # File 'test' written
touch /root/udisk/test # File 'test' written
touch /root/udisk/loot/test # File 'test' written
touch /root/udisk/debug/test # File 'test' written
touch /root/udisk/payloads/test # File 'test' written
touch /root/udisk/payloads/switch1/test # File 'test' written


# Here I could write to my Bunny again

LED R G B

https://github.com/bg-wa/bashbunny-payloads/blob/bunny_permissions_checker/payloads/library/bunny_permissions_checker/payload.txt

Hope that helps someone else along the line.

 

 

Edited by bg-wa

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